samba - Oct 2009 - Account Administrator works for "net rpc info", but not for "net rpc join"

Hi,

I'm using Samba 3.2.5 in conjunction with kernel 2.6.26-2-686-bigmem
(Debian Lenny) and recognized that when setting up ldapsam:editposix
in accordance with

http://wiki.samba.org/index.php/Ldapsam_Editposix

it turns out that

net rpc info -U Administrator

on Linux box works as expected, whereas

net rpc join -U Administrator

yields NT_STATUS_LOGON_FAILURE

In the server log (file <ip-address-of-server>.log) I see

======
 change_to_user: SMB user nobody (unix user nobody, vuid 100) not
permitted access to share IPC$.
[2009/10/23 17:19:00,  0] smbd/service.c:make_connection_snum(1086)
  Can't become connected user!
  [2009/10/23 17:19:00,  3] smbd/connection.c:yield_connection(31)
    Yielding connection to IPC$
    [2009/10/23 17:19:00,  3] smbd/error.c:error_packet_set(61)
      error packet at smbd/reply.c(662) cmd=117 (SMBtconX)
NT_STATUS_LOGON_FAILURE

======
So, it seems like "Administrator" is mapped to "nobody" on
the Linux
side. I checked the Administrator account in LDAP using JXplorer to
verify whether it's not only a smabaSamAccount, but also a
posixAccount. It indeed is.

Any idea what's wrong. Do I have to perform any additional stetps
(right granting, user mapping, etc. for the Administrator user)?

Do I have to create an additional root user in the LDAP database and
then run "smbpasswd -a" for that user?

Thanks in advance for any info.

Kind regards,

     Holger
     
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